預覽列印:

實際列印:

private static int RowPos;              // Position of currently printing row 
private static bool NewPage;            // Indicates if a new page reached
private static int PageNo;              // Number of pages to print
private static int RowsPerPage;         // Number of Rows per Page 一頁幾行
static double LastSheet;//判斷領單是否與上一筆相同
static string[] LvNumber = new string[] { "1", "1", "1", "1", "1", "1", "2", "2", "2", "2", "2" };
public static void Print_DataGridView()
{
    PrintPreviewDialog ppvw;
    RowsPerPage = 0;
    PrintDocument PD = new PrintDocument();
    LastSheet = Convert.ToDouble(LvNumber[0]);
    PD.PrinterSettings.PrinterName = "Microsoft Print to PDF";
    // Showing the Print Preview Page
    PD.BeginPrint += new System.Drawing.Printing.PrintEventHandler(PrintDoc_BeginPrint);
    PD.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(PrintDoc_PrintPage);
    ppvw = new PrintPreviewDialog();
    ppvw.Document = PD;
    ppvw.ShowDialog(); 
    PD.BeginPrint -= new System.Drawing.Printing.PrintEventHandler(PrintDoc_BeginPrint);
    PD.PrintPage -= new System.Drawing.Printing.PrintPageEventHandler(PrintDoc_PrintPage);
}
private static void PrintDoc_BeginPrint(object sender,System.Drawing.Printing.PrintEventArgs e)
{
    PageNo = 1;
    NewPage = true;
    RowPos = 0;
}
private static void PrintDoc_PrintPage(object sender,System.Drawing.Printing.PrintPageEventArgs e)
{
    e.HasMorePages = false;
    while (RowPos <= LvNumber.Length - 1)
    {
     ////////換頁!!!!!
        if (LastSheet != Convert.ToDouble(LvNumber[RowPos]))
        {
            DrawFooter( e);
            PageNo++;
            NewPage = true;
            e.HasMorePages = true;
            LastSheet = Convert.ToDouble(LvNumber[RowPos]);
            return;
        }
        else
        {
            if (NewPage)
            {
            string StrLeftTitle = "專案編號";
            e.Graphics.DrawString(StrLeftTitle, new Font("標楷體", 12, FontStyle.Bold),Brushes.Black, e.MarginBounds.Left - 70, e.MarginBounds.Top -e.Graphics.MeasureString(StrLeftTitle, new Font("標楷體", 12, FontStyle.Bold), e.MarginBounds.Width).Height - 13);
            NewPage = false;
            }
            e.Graphics.DrawString(LvNumber[RowPos].ToString(), new Font("標楷體", 12, FontStyle.Bold),Brushes.Black, e.MarginBounds.Left + (RowPos * 10), e.MarginBounds.Top -e.Graphics.MeasureString(LvNumber[RowPos].ToString(), new Font("標楷體", 12, FontStyle.Bold), e.MarginBounds.Width).Height + 50);
        }
        LastSheet = Convert.ToDouble(LvNumber[RowPos]);
        e.HasMorePages = false;
        RowPos++;
    }
    DrawFooter(e);
    e.HasMorePages = false;
}
private static void DrawFooter(System.Drawing.Printing.PrintPageEventArgs e)
{
    // Detemining rows number to print
    string PageNum = "";
    // Writing the Page Number on the Bottom of Page
    PageNum = PageNo.ToString();
    e.Graphics.DrawString(PageNum, new Font("標楷體", 12, FontStyle.Bold), Brushes.Black,e.MarginBounds.Left + (e.MarginBounds.Width -e.Graphics.MeasureString(PageNum, new Font("標楷體", 12, FontStyle.Bold),e.MarginBounds.Width).Width) / 2, e.MarginBounds.Top +e.MarginBounds.Height);
}

我要預覽列印的結果，但實際印卻不一樣，不知道問題在哪?